Portable derrick.



No. 662,906. Patented Dec. 4, I900.

W. BAPTIST. PORTABLE DERRICK. (Application filed Aug. 5, 1899.)

2 Sheets--ShaaI:

(No IodeL)" Eff/7613866 Tm: NORRIS PE TEns co. FHOTQ-LITHO.. wAsumsroM. n. c.

No. 662,906. Patented Dec. 4, I900.

W. BAPTIST.

PORTABLE DERRICK.

(Application filed Aug. 5, 1899.)

(NoModoL) 2 Sheets--8heet 2.

fry. 4

Wfhzesaes 1706772 07 m; NORRIS Pzrzns CO-IPHOTO-LITHQ, WASHINGTON. o. c

nrnnr @rrrcn.

WILLIAM BAPTIST, OF NEW ORLEANS, LOUISIANA.

PQRTABLIEDER SPECIFICATION forming part of Letters Patent N0. 662,906, dated Decemb 4, 1900.

Application filed August 5.1899. Serial No. 726,223. No model.)

To all whom it may concern.-

Be it known that 1, WILLIAM BAPTIST, a citizen of the United States, and a resident of New Orleans, in the parish of Orleans and State of Louisiana, have invented certain new and useful Improvements in Portable Derricks, of which the following is a specification.

In the accompanying drawings, Figure 1 is a side elevation of an apparatus containing my invention in one position. Fig. 2 is a side elevation of sufficient of the same to show another position. Fig. 3 is an end view of the same in one position. Fi t is an end view of the same in another position.

1 2 are the rails of an ordinary railwaytrack, upon which run the cars 3 4, which, as shown, are of the construction employed for conveying logs.

5 is a derrick-platform carrying the derrick and derrick-engine by which the articles (in this case logs) are to be loaded onto the cars. Since any form of derrick apparatus and engine may be employed on the platform 5 for this purpose,a detailed description of the same is unnecessary. When being moved from place to place, the platform 5 is carried by the bunker beams or supports 67 of the car 3. The platform 5, however, carries the wheels 8, mounted in suitable bearings at a gage greater than the gage of the tracks 1 2.

When the derrick is employed for loading the train of cars, it is necessary that the derrick should be stationary and the cars movable, so that each car of the train can be successively presented in the proper position to receive its load, each empty car as it comes into loading position passing under the platform 5. For this purpose I place on opposite sides of the railroad-track 1 2 the rails 9 10, raised by the blocks 11 12, and placed in such position that their gage corresponds with that of the wheels 8 S. The rails 9 10 contain at one or both ends a downward inclination 13. The axle 17, with or upon which each of the wheels 8 turns, is separate from the axle upon which the other wheels of the same pair turn, and each axle 17 is supported wholly on one side of the car 3. Each of them is shown in the drawings as supported by a pair of blocks 18 and 19, hanging from the platform 5 on opposite sides of the car 3. Thus the supports for each pair of wheels S'are so located that they straddle the car 3 and provide a space between them where the platform 5 rests on the car, in which space the car is free to run back and forth under the platform between the hangers 19 19 when. the wheels 8 are resting on the supplemental trackway 9 10. When now the train of cars, with the derrick-platform 5 resting on one of the cars, is moved toward the rails 9 10, the wheels 8 will mount the incline 13, and the elevation .of the rails 9 10 is such that the platform 5 will be lifted clear of the car and. the weight of the derrick apparatus will be transferred from the car to the wheels 8 8 and the rails 9 10. In Fig. 2 the derrick and car are supposed to be moving in the direction of the arrow 14 and to have reached a position where one pair of wheels 8 has ascended onto the tracks 9 10 and the other pair of wheels is about to ascend. In Fig. 1 both pairs of wheels are represented as having ascended. W'hen in the position shown in Fig. 1, the blocks 15 16 may be employed for blocking the wheels 8.

I claim- A main track, a supplemental track-section of greater gage than the main track arranged on either side of the main track parallel thereto and at a greater elevation than said main track, in combination with cars to travel on the main track, a platform carried thereby, pairs of blocks depending from the platform, and a double-flanged wheel journaled in each pair of blocks at the gage of the supplemental track section, said pairs of blocks being so spaced that the platform may rest on the cars therebetween and be carried thus until the platform is elevated by the double-flanged wheels riding on the supplemental track, substantially as described.

WILLIAM BAPTIST.

WVitnesses:

A. B. Boorrr, L. L. DAVIS. 

